DIN EN 61056-2:2013-06

This standard specifies the dimensions, terminals and marking for general purpose lead-acid cells and batteries of the valve regulated type - for either cyclic or float charge application or - in portable equipment, for instance, incorporated in tools, toys, or in static emergency, or uninterruptible power supply and general power supplies. The cells of this kind of lead-acid battery may either have flat-plate electrodes in prismatic containers or have spirally wound pairs of electrodes in cylindrical containers. The sulphuric acid in these cells is immobilized between the electrodes either by absorption in a micro-porous structure or in a gelled form. This standard defines the dimensions of the batteries in length, height and width as well as the shapes of the terminals. The responsible committee is K 371 "Akkumulatoren" ("Secondary cells and batteries") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.